Download Emerson MR105 Instruction Manual

Type MR105
Instruction Manual
Form 5874
December 2014
Type MR105 Direct-Operated Pressure
Reducing Regulators
Contents
Introduction .................................................................. 2
Specifications .............................................................. 2
Principle of Operation .................................................. 3
Installation ................................................................... 4
Overpressure Protection.............................................. 8
Startup ......................................................................... 8
Adjustment................................................................... 9
Shutdown..................................................................... 9
Maintenance .............................................................. 10
Parts List.................................................................... 16
!
WARNINg
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion,
fire and/or chemical contamination
causing property damage and personal
injury or death.
Fisher® regulators must be installed,
operated and maintained in
accordance with federal, state and
local codes, rules and regulations
and Emerson Process Management
Regulator Technologies, Inc.
(Emerson™) instructions.
If the regulator vents gas or a leak
develops in the system, service to the unit
may be required. Failure to correct trouble
could result in a hazardous condition.
TYPE MR105 WITH
HIgH-PRESSURE ACTUATOR
P1205
TYPE MR105 WITH
LOW-PRESSURE ACTUATOR
Figure 1. Type MR105 Direct-Operated Pressure
Reducing Regulators
adjustment and unsafe operation. Either
condition may result in equipment damage
or personal injury. Call a qualified
personnel when installing, operating and
maintaining the Type MR105 regulator.
D103246X012
Installation, operation and maintenance
procedures performed by unqualified
personnel may result in improper
P1204
www.fisherregulators.com
Type MR105
Specifications
The Specifications section on this page provides the ratings and other specifications for the Type MR105. The
following information is stamped on the nameplate fastened on the regulator at the factory: type; body size;
maximum inlet, outlet and differential pressure; maximum pressure above setpoint; maximum casing pressure;
maximum temperature; spring range; cage type; and trim and diaphragm material.
Body Sizes and End Connection Styles
See Table 1
Shutoff Classification Per ANSI/FCI 70-3-2004
Class VI (Soft Seat)
Maximum Inlet, Outlet and Emergency
Casing Pressures(1)
See Table 3
Outlet Pressure Ranges(1)
5 to 300 psig / 0.34 to 20.7 bar; see Table 2
Maximum Setpoint(1)
Low-Pressure Actuator: 43 psig / 3.0 bar
High-Pressure Actuator:
Nitrile (NBR) and Ethylene Propylene (EPDM)
Diaphragm: 300 psig / 20.7 bar
Fluorocarbon (FKM) Diaphragm: 150 psig /
10.3 bar
Maximum Pressure Over Setpoint to Avoid Internal
Parts Damage(1)
Low-Pressure Actuator: 20 psig / 1.4 bar
High-Pressure Actuator: 120 psig / 8.3 bar
Maximum Differential Pressures(1)
See Table 4
Temperature Capabilities(1)
Nitrile (NBR): -20 to 180°F / -29 to 82°C
Fluorocarbon (FKM)(2): 20 to 250°F / -7 to 121°C
Ethylene Propylene (EPDM)(3): -20 to 225°F /
-29 to 107°C
Flow and Sizing Coefficients
See Table 5
Pressure Registration
External
Downstream Control Line Connection Size
1/2 NPT
Spring Case Vent
Type Y602-12
Pressure-Loaded Spring Case Vent
1/2 NPT
Approximate Weights
For Type MR105 with Low-Pressure Actuator
NPS 1 / DN 25 : 86 lbs / 39 kg
NPS 2 / DN 50: 116 lbs / 53 kg
NPS 3 / DN 80: 165 lbs / 75 kg
NPS 4 / DN 100: 174 lbs / 79 kg
For Type MR105 with High-Pressure Actuator
NPS 1 / DN 25: 76 lbs / 34 kg
NPS 2 / DN 50: 105 lbs / 48 kg
NPS 3 / DN 80: 155 lbs / 70 kg
NPS 4 / DN 100: 164 lbs / 74 kg
Options
• Visual Travel Indicator
• Drain Valve
• Pressure-Loaded Actuator
• NACE Construction
• Bleed Valve (for High-Pressure Actuator Only)
• Ethylene Propylene (EPDM) Elastomer
Trim Parts
1. The pressure/temperature limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded.
2. Fluorocarbon (FKM) is limited to 200°F / 93°C in hot water.
3. Ethylene Propylene (EPDM) is limited to 20 to 250°F / -7 to 121°C when used with Low Pressure Actuator.
!
Warning
To avoid possible personal injury,
equipment damage or leakage due to
escaping fluid do not stand on or apply
an external load to the actuator or any
part of the regulator while working
around the regulator.
Note
To avoid cavitation, it is recommended that
the customer follow the capacity sizing
guidelines found in Bulletin 71.1:MR105.
2
Introduction
Scope of the Manual
This instruction manual provides installation,
adjustment, maintenance and parts ordering
information for Type MR105 direct-operated
pressure reducing regulators.
Description
The Type MR105 direct-operated pressure reducing
regulators are high capacity multi-purpose regulators.
They are designed to handle pressures up to 400 psig /
Type MR105
Table 1. Body Size and End Connection Style
end connection style
Body Size
BODY MATERIAL
NPS 1 and 2 / DN 25 and 50
NPT, CL125 FF or CL250 RF
NPT, CL150 RF, CL300 RF, CL600 RF
or PN 16/25/40 RF
NPT, CL150 RF, CL300 RF, CL600 RF
or PN 16/25/40 RF
NPT, CL150 RF, CL300 RF, CL600 RF
or PN 16/25/40 RF
Cast Iron
WCC Steel(1)(2)
CF8M Stainless Steel(1)(2)
CF3M Stainless Steel(1)(2)
NPS 3 and 4 / DN 80 and 100
CL125 FF or CL250 RF
CL150 RF, CL300 RF, CL600 RF
or PN 16 RF
CL150 RF, CL300 RF, CL600 RF
or PN 16 RF
CL150 RF, CL300 RF, CL600 RF
or PN 16 RF
1. Optional NACE construction available.
2. Constructions meet API 614 requirements.
Table 2. Outlet Pressure Range
NPS 1 and 2 / DN 25 and 50 Body Size
Spring Range
Actuator Type
Low Pressure
High Pressure
psig
5 to 12
10 to 24
14 to 32
18 to 43
25 to 60(1)
43 to 100
75 to 175(2)
110 to 300(2)
Spring Range
Actuator Type
Low Pressure
High Pressure
bar
0.34 to 0.83
0.69 to 1.6
0.96 to 2.2
1.2 to 3.0
1.7 to 4.1(1)
3.0 to 6.9
5.2 to 12.1(2)
7.6 to 20.7(2)
Spring Part
Number
Spring Color
Code
Spring Wire Diameter
In.
GE42909X012
White
0.437
GE42910X012
Silver
0.500
GE42911X012
Orange
0.562
GE43002X012
Red
0.625
GE42907X012
Green
0.375
GE42909X012
White
0.437
GE42910X012
Silver
0.500
GE42911X012
Orange
0.562
NPS 3 and 4 / DN 80 and 100 BODY SIZE
Spring Part
Number
Spring Color
Code
White
psig
5 to 8
bar
0.34 to 0.55
GE42909X012
mm
11.1
12.7
14.3
15.9
9.52
11.1
12.7
14.3
Spring Wire Diameter
In.
0.437
mm
11.1
8 to 20
0.55 to 1.4
GE42910X012
Silver
0.500
12.7
12 to 30
18 to 39
39 to 72
71 to 175(2)
0.83 to 2.1
1.2 to 2.7
2.7 to 5.0
4.9 to 12.1(2)
GE42911X012
GE43002X012
GE42909X012
GE42910X012
Orange
Red
White
Silver
0.562
0.625
0.437
0.500
14.3
15.9
11.1
12.7
110 to 250(2)
7.6 to 17.2(2)
GE42911X012
Orange
0.562
14.3
Spring Free Length
In.
9.70
mm
Maximum Pressure Over
Setpoint to Avoid Internal
Parts Damage
psig
bar
20
1.4
120
8.3
246
Spring Free Length
In.
mm
9.70
246
Maximum Pressure Over
Setpoint to Avoid Internal
Parts Damage
psig
bar
20
1.4
120
8.3
1. NPS 2 / DN 50 body size spring range is limited to 45 psig / 3.1 bar.
2. Maximum setpoint is limited to 150 psig / 10.3 bar for constructions with Fluorocarbon (FKM) diaphragm.
27.6 bar and temperatures up to 250°F / 121°C. Large
multi-purpose regulators provide fast, simple, reliable and
economical pressure control for a number of applications
and are suitable for different flow media such as liquid, air
and gas. In addition, the drain valve option allows you to
drain the system without expensive spool pieces saving
you time and space. Also, the bleed valve option allows
you to purge the air trapped underneath the diaphragm
when the high-pressure regulator is installed in the upright
position. Typical applications include lube oil, cooling
water and natural gas district stations.
!
Warning
Escaping process fluid from an open bleed
valve may result in regulator damage,
personal injury and property damage.
To avoid such injury and damage, make
certain the bleed valve (if used) is properly
closed after venting air or equivalent.
Always open bleed valves slowly. These
valves contain no packing, so some fluid
weepage will occur when the valves
are opened. Operating personnel must
protect themselves from exposure to
system fluids or equivalent.
Principle of Operation
The Type MR105 is a direct-operated pressure
reducing regulator. Downstream pressure is registered
externally through a 1/2 NPT control line tapped in the
bonnet (for low-pressure actuator, see Figure 2) or in
the lower diaphragm casing (for high-pressure actuator,
see Figure 3). When downstream demand decreases,
the pressure under the actuator diaphragm increases.
This pressure overcomes the regulator setting (which
is set by the regulator control spring). Through the
action of the actuator stem and valve spring, the valve
plug moves closer to the seat ring and reduces the
flow. When demand downstream increases, pressure
under the actuator diaphragm decreases. Spring force
pushes the actuator stem downward, the valve plug
moves away from the seat ring and the flow increases
3
Type MR105
VALVE SPRING
VALVE PLUG
CAGE
seat ring
TYPE Y602-12 VENT
1/2 NPT CONTROL
LINE CONNECTION
actuator stem
DIAPHRAGM
TYPE Y602-12 VENT POINTED DOWN
OR 1/2 NPT PRESSURE-LOADED
SPRING CASE VENT
ACTUATOR
CONTROL SPRING
M1178
INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
Figure 2. Type MR105 with Low-Pressure Actuator Operational Schematic
downstream as the regulator opens in response to the
decreased pressure underneath the diaphragm. The
downward motion of the plug allows flow through the
cage into the downstream system.
Increased downstream pressure permits the regulator
to close. The combination of valve spring force and
valve plug unbalance provides positive valve plug
shutoff against the port and upper seals.
Installation
!
Warning
Personal injury or system damage
may result if this regulator is installed,
without appropriate overpressure
protection, where service conditions
could exceed the limits given in the
Specifications section and/or regulator
nameplate. Refer to Overpressure
4
Protection section for recommendations
on how to prevent service conditions
from exceeding those limits.
Additionally, physical damage to the
regulator may result in personal injury
or property damage due to escaping of
accumulated gas. To avoid such injury
and damage, install the regulator in a
safe location.
All vents should be kept open to permit
free flow of gas to the atmosphere. Protect
openings against entrance of rain, snow,
insects or any other foreign material that
may plug the vent or vent line. On outdoor
installations, point the spring case vent
downward to allow condensate to drain.
Under enclosed conditions or indoors,
escaping gas may accumulate and be
an explosion hazard. In these cases,
the vent should be piped away from the
regulator to the outdoors.
Type MR105
VALVE SPRING
VALVE PLUG
CAGE
seat ring
TYPE Y602-12 VENT
actuator stem
1/2 NPT CONTROL
LINE CONNECTION
ACTUATOR
DIAPHRAGM
TYPE Y602-12 VENT POINTED DOWN
OR 1/2 NPT PRESSURE-LOADED
SPRING CASE VENT
CONTROL SPRING
M1181
INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
Figure 3. Type MR105 with High-Pressure Actuator Operational Schematic
Table 3. Maximum Inlet, Outlet and Emergency Casing Pressure(1)
Body
Material
Cast Iron
WCC steel
CF8M
Stainless steel
CF3M
Stainless steel
end
connection
NPT
CL125 FF
CL250 RF
NPT
CL150 RF
CL300 RF
CL600 RF
PN 16 RF
PN 16/25/40 RF
NPT
CL150 RF
CL300 RF
CL600 RF
PN 16 RF
PN 16/25/40 RF
NPT
CL150 RF
CL300 RF
CL600 RF
PN 16 RF
PN 16/25/40 RF
Maximum Inlet
Pressure
psig
340
175
400
400
245
bar
23.4
12.1
27.6
27.6
16.9
400
27.6
245
400
400
225
16.9
27.6
27.6
15.5
400
27.6
225
400
400
185
15.5
27.6
27.6
12.7
400
27.6
185
400
12.7
27.6
Maximum Outlet Pressure
Low-Pressure
Actuator
psig
bar
70
4.8
70
4.8
70
70
4.8
4.8
Maximum Emergency Casing Pressure
High-Pressure
Actuator(2)
psig
bar
340
23.4
175
12.1
400
27.6
400
27.6
245
16.9
400
27.6
245
400
400
225
16.9
27.6
27.6
15.5
400
27.6
225
400
400
185
15.5
27.6
27.6
12.7
400
27.6
185
400
12.7
27.6
Low-Pressure
Actuator
psig
bar
70
4.8
70
4.8
70
70
4.8
4.8
High-Pressure
Actuator(2)
psig
bar
340
23.4
175
12.1
400
27.6
400
27.6
245
16.9
400
27.6
245
400
400
225
16.9
27.6
27.6
15.5
400
27.6
225
400
400
185
15.5
27.6
27.6
12.7
400
27.6
185
400
12.7
27.6
1. Based on a maximum temperature of 250°F / 121°C.
2. Maximum outlet and emergency casing pressures for constructions with Fluorocarbon (FKM) diaphragm are limited to 230 psig / 15.8 bar or the body rating limit, whichever is lower.
5
Type MR105
Note
To avoid premature wear of internal
parts, it is recommended that the
actuator be oriented up or down in liquid
service as shown in Figures 2 and 3.
General Installation Instructions
Vertical installation with the actuator installed directly
above or below the main valve is recommended
but for optimal performance the actuator should be
installed below the main valve. The use of a bleed
valve is recommended for liquid installations that
require the high pressure actuator to be mounted
above the main valve. The unit will operate in
horizontal installations with the actuator on the side,
however, this could result in premature wear of parts.
Make sure that flow will be in the same direction as
that indicated by the body arrow. Orientation of the two
vents should always be down. Vents may be rotated
after regulator installation so that the vent screens
are down.
restrictor
(key 75)
pipe bushing
(key 76)
Before installing the regulator:
• Check for damage which might have occurred
during shipment.
• Check for and remove any dirt or foreign material
which may have accumulated in the regulator body.
• Blow out any debris, dirt or copper sulfate in the
tubing and the pipeline.
• Apply pipe compound to the external threads of the
pipe before installing the regulator.
• Make sure gas flow through the regulator is in the
same direction as the arrow on the body. “Inlet” and
“Outlet” connections are clearly marked.
Note
A linear cage is recommended for
applications where low flow stability
is a concern but it will limit the overall
capacity of the regulator.
Note
For proper regulator control and
operation, make certain the flow arrow
on the body matches the flow direction.
Note
Contact appropriate Emerson™
representative prior to removing or
modifying restrictor (if used) in sense
6
Figure 4. Type MR105 with High-Pressure Actuator
and Restrictor Option
line. Improper adjustment to restrictor
can lead to instability in pressure
reducing regulator.
Note
Restrictor is intended for use on liquid
applications with high-pressure actuator.
Refer to Figure 4.
caution
This regulator can be installed in a pit,
which is prone to flooding. The vents of
the spring case and lower diaphragm
casing (High-Pressure Actuator) or
bonnet (Low-Pressure Actuator) should
be above the expected flood level or vent
lines should be installed to terminate
above the water level so that they are
exposed to atmospheric pressure.
Type MR105
Table 4. Maximum Differential Pressure
NPS
1
2
3
4
1
2
3
4
Low Pressure
High Pressure
MAXIMUM DIFFERENTIAL PRESSURE
BODY SIZE
ACTUATOR TYPE
Gas Service (Linear Cage)
DN
25
50
80
100
25
50
80
100
psid
bar d
400 or maximum
inlet pressure,
whichever is lower
27.6 or maximum
inlet pressure,
whichever is lower
400 or maximum
inlet pressure,
whichever is lower
27.6 or maximum
inlet pressure,
whichever is lower
Liquid Service (Quick Opening Cage)
psid
200
200
225
225
250
200
225
250
bar d
13.6
13.6
15.5
15.5
17.2
13.6
15.5
17.2
Table 5. Wide-Open Flow and IEC Sizing Coefficient
LINEAR CAGE
Body Size
Wide-Open Flow Coefficient
Line Size Equals Body Size
NPS
DN
Cg
CV
1
2
3
4
25
50
80
100
463
761
997
934
13.7
22.5
30.5
27.5
Body Size
Wide-Open Flow Coefficient
Line Size Equals Body Size
NPS
DN
Cg
CV
1
2
3
4
25
50
80
100
597
1740
3540
4300
17.5
48.2
103.1
135.9
Body Size
Wide-Open Flow Coefficient
Line Size Equals Body Size
NPS
DN
Cg
CV
2
50
1570
43.8
IEC Sizing Coefficient
C1
Km
34.0
0.81
33.8
0.75
32.7
0.78
34.0
0.77
QUICK OPENING CAGE
FL
XT
Fd
0.90
0.87
0.88
0.88
0.73
0.72
0.68
0.75
0.36
0.24
0.22
0.18
XT
Fd
0.73
0.82
0.75
0.65
0.43
0.34
0.32
0.30
IEC Sizing Coefficient
C1
Km
FL
34.1
0.81
0.90
36.1
0.81
0.90
34.4
0.76
0.87
31.6
0.72
0.85
REDUCED PORT QUICK OPENING CAGE
IEC Sizing Coefficient
C1
Km
FL
XT
Fd
35.9
0.81
0.90
0.72
0.36
Installation Location
• The installed regulator should be adequately
protected from vehicular traffic and damage from
other external sources.
• Install the regulator with the vent pointed
vertically down, see Figures 2 and 3. If the vent
cannot be installed in a vertically down position,
the regulator must be installed under a separate
protective cover. Installing the regulator with the vent
down allows condensation to drain, minimizes the
entry of water or other debris through the vent and
minimizes vent blockage from freezing precipitation.
• Do not install the Type MR105 in a location
where there can be excessive water
accumulation or ice formation, such as directly
beneath a downspout, gutter or roof line of a
building. Even a protective hood may not provide
adequate protection in these instances.
• Install the regulator so that any gas discharge
through the vent or vent assembly is over 3 ft / 0.9 m
away from any building opening.
• Periodically check all vent openings to be sure that
they are not plugged.
caution
To protect against precipitation, make
certain that the vents are oriented
such that the opening does not allow
precipitation to enter vents.
Regulators Subjected to Heavy
Snow Conditions
Some installations, such as in areas with heavy
snowfall, may require a hood or enclosure to protect the
regulator from snow load and vent freeze over.
7
Type MR105
!
Warning
Personal injury, equipment damage or
leakage due to escaping fluid may result
if the bonnet (key 61, Low-Pressure
Actuator) or lower diaphragm casing
(key 62, High-Pressure Actuator) is
backed off or loosened when installing
control line.
Downstream Control Line Installation
The Type MR105 regulator requires a downstream
control line for proper pressure control. A 1/2 NPT
control line connection is located on the bonnet
(for low-pressure actuator, see Figure 2) or on
the lower diaphragm casing (for high-pressure
actuator, see Figure 3). For high-pressure actuator
with Quick Opening Cage (liquid service), pipe
bushing (key 76) and restrictor (key 75) should
be installed in the 1/2 NPT control line connection
(see Figure 4).
Connect the downstream control line tubing to
the bonnet or lower casing and run the tubing
approximately 20 in. / 0.5 m downstream. For best
results, the outer diameter of the control line tubing
should be 3/8 in. / 9.5 mm or larger.
Vent Line Installation
Type MR105 regulators have a 1/2 NPT vent opening on
the spring case. When installed inside a building or if it is
necessary to vent escaping gas away from the regulator,
install a remote vent line in the spring case tapping. Vent
piping should be as short and direct as possible with a
minimum number of bends and elbows. The remote vent
line should be at least 1/2 in./13 mm outer diameter tubing
or 1/2 NPT pipe.
Remove the Type Y602-12 vent and the pipe
bushing (key 76, Figure 6) and attach the vent line
at this location. The other end of the vent line should be
located outside with a screened vent (Type Y602-12 vent
connector). The Type Y602-12 vent connector should
be pointed down and protected as described in the
Installation Location section.
Overpressure Protection
!
Warning
Personal injury, equipment damage or
leakage due to escaping accumulated
8
gas or bursting of pressure-containing
parts may result if this regulator is:
• Overpressured;
• Used with incompatible process fluid;
• Installed where service conditions
could exceed the limits given in the
Specifications section and on the
appropriate nameplate; or
• Where conditions exceed any
ratings of adjacent piping or
piping connections.
To avoid such injury or damage, provide
pressure-relieving or pressure-limiting
devices to prevent service conditions
from exceeding those limits.
Type MR105 regulators have an outlet pressure
rating lower than the inlet pressure rating. The
recommended pressure limitations are stamped on
the regulator nameplate. Some type of overpressure
protection is needed if the actual inlet pressure can
exceed the maximum operating outlet pressure
rating. Overpressuring any portion of the regulators
beyond the limits in the Specifications section
may cause leakage, damage to regulator parts
or personal injury due to bursting of pressurecontaining parts.
Provide an external overpressure protection if
inlet pressure will be high enough to damage
downstream equipment. Common methods of
external overpressure protection include relief valves,
monitoring regulators, shut-off devices and
series regulation.
If the regulator is exposed to an overpressure condition,
it should be inspected for any damage that may have
occurred. Regulator operation below the limits specified
in the Specifications section and regulator nameplate
does not preclude the possibility of damage from
external sources or from debris in the pipeline.
Startup
!
Warning
To avoid possible personal injury,
equipment damage or leakage due
to escaping fluid, make certain the
regulator is installed as instructed in
the Installation section.
Pressure gauges must always be
used to monitor downstream pressure
during Startup.
Type MR105
1. Check that proper installation is completed
and downstream equipment has been
properly adjusted.
2. Make sure all block and vent valves are closed.
3. Slowly open the valves in the following order:
a. Loading supply and control line valve(s),
if used
b. Inlet shut-off valve
c. Outlet shut-off valve
1/4 NPT drain
valve (KEY 82)
4. If the regulator has the bleed valve option, slowly
open valve to allow air to escape from lower
casing. Once fluid starts to bleed out, close valve.
1/8 NPT INLET
BLEED VALVE
(KEY 85)
caution
The regulator is factory-set as specified
on the order or at the midpoint of the
spring range. The allowable spring
range is stamped on the nameplate. If
a pressure setting other than the one
specified is desired, be sure to change
the pressure setting by following the
Adjustment procedure.
5. If resetting setpoint, then set the regulator to
the desired outlet pressure according to the
Adjustment procedure.
Adjustment
Key numbers are referenced in Figure 6.
!
Warning
Personal injury, equipment damage
or leakage due to escaping fluid may
result if adjusting screw (key 73) and
jam nut (key 72) are not installed
properly. Also, main spring (key 68)
may go solid resulting in the regulator
not locking up if jam nut is not installed
and adjusting screw is adjusted
completely down.
The factory setting of the regulator can be varied
within the pressure range stamped on the nameplate.
To change the outlet pressure, loosen the jam nut
(key 72) using a hand wrench (not an impact gun),
turn the adjusting screw (key 73) clockwise to
increase outlet pressure setting or counterclockwise
Figure 5. Type MR105 with High Pressure Actuator, Drain Valve
and Bleed Valve Option
to decrease it. Monitor the outlet pressure with a test
gauge during the adjustment. Tighten the jam nut to
maintain the desired setting.
All regulator springs can be backed off to provide zero
outlet. Recommended outlet pressure ranges available
and color codes of the control springs are shown in the
Specifications section and in Table 2.
Shutdown
!
Warning
Personal injury, equipment damage
or leakage due to escaping fluid may
result if needle valves are used to isolate
the pressure reducing regulator. It is
strongly recommended that block valves
be used to properly isolate the regulator
from system.
Escaping process fluid from an open
drain valve (see Figure 5) may result in
regulator damage, personal injury and
property damage. To avoid such injury
9
Type MR105
and damage, make certain the drain
valve (if used) is properly closed after
bleeding process fluid.
1. Isolate the regulator from the system in steps 2
and 3.
2. Close the upstream shut-off valve to the
regulator inlet.
3. Close the downstream shut-off valve to the
regulator outlet.
!
Warning
To avoid personal injury or damage of
internal parts from a pressure-loaded
actuator, carefully vent the regulator spring
case pressure prior to outlet pressure.
4. If the actuator is pressure loaded, vent the
loading pressure slowly to release pressure in the
spring case.
Note
To avoid internal damage due to
reverse pressurization of main valve
components, make certain pressure
reducing regulator outlet pressure is
bled prior to inlet pressure.
5. Slowly open the downstream vent valve to vent
downstream pressure.
6. Leave the downstream vent valve open to vent
inlet pressure and to release all remaining
pressure in the regulator.
7. If the regulator has the drain valve option, slowly
open valve to drain fluid inside valve body. Make
sure to close valve after fluid has been drained.
Maintenance
!
Warning
Personal injury, equipment damage or
leakage due to escaping fluid may result
if seals are not properly lubricated or
maintained. Due to normal part wear or
damage that may occur from external
sources, this regulator should be
inspected and maintained periodically.
The frequency of inspection,
maintenance and replacement of parts
depend upon the severity of service
10
conditions or the requirements of local,
state and federal regulations.
Regulators that have been disassembled
for repair must be tested for proper
operation before being returned to
service. Only parts manufactured
by Emerson™ should be used for
repairing Fisher® regulators. Restart
gas utilization equipment according to
normal start-up procedures.
Note
To protect against reduced performance,
make certain vents are not plugged
when conducting routine maintenance.
Annual Maintenance
The stem O-rings on the Type MR105 actuator can be
lubricated during regularly scheduled maintenance,
using the grease fitting (key 44). Stem O-rings can be
checked for damage during normal operation. If line
pressure leakage or unexpected grease extrusion from
the actuator vent (key 26) is observed the stem O-ring
needs to be replaced.
Change Nameplate
Be certain that the nameplates are updated to
accurately indicate any field changes in equipment,
materials, service conditions or pressure settings.
Disassembly
!
Warning
To avoid personal injury resulting
from sudden release of pressure,
isolate the regulator from all pressure
and cautiously release trapped
pressure from the regulator before
attempting disassembly.
Failure to properly follow maintenance
installation procedures when replacing
parts could result in regulator damage,
personal injury and property damage
from escaping process fluid or
regulators separation during testing or
after reinstallation in the pipe line.
Instructions are given below for the disassembly of
Type MR105 pressure reducing regulators. Suitable
lubricants are indicated on the assembly drawings.
Type MR105
Table 6. Type MR105 Product Assembly Torque
TORQUE
NPS 1 / DN 25
Body Size
part name and Key Number
NPS 2 / DN 50
Body Size
NPS 3 / DN 80
Body Size
NPS 4 / DN 100
Body Size
FT-LB
N•m
FT-LB
N•m
FT-LB
N•m
FT-LB
N•m
Body Flange Studs and Nuts (keys 3 and 29)
75 to 95
102 to 129
50 to 65
68 to 88
100 to 130
136 to 176
160 to 210
217 to 285
Lower Indicator Fitting (key 5)
90 to 130
122 to 176
90 to 130
122 to 176
90 to 130
122 to 176
90 to 130
122 to 176
Indicator Plug (key 27)
90 to 130
122 to 176
90 to 130
122 to 176
90 to 130
122 to 176
90 to 130
122 to 176
Indicator Fitting (key 35)
60 to 90
81 to 122
60 to 90
81 to 122
60 to 90
81 to 122
60 to 90
81 to 122
Actuator Stem Jam Nuts (key 48)
12 to 14
16 to 19
12 to 14
16 to 19
12 to 14
16 to 19
12 to 14
16 to 19
Low Pressure: Actuator Flange Cap Screws and Nuts
(keys 57 and 58)
27 to 29
37 to 39
27 to 29
37 to 39
27 to 29
37 to 39
27 to 29
37 to 39
High Pressure: Actuator Flange Studs and Nuts
(keys 57 and 58)
45 to 55
61 to 75
45 to 55
61 to 75
45 to 55
61 to 75
45 to 55
61 to 75
Bonnet and Spring Case Spacer Cap Screws (key 65)
10 to 12
14 to 16
10 to 12
14 to 16
10 to 12
14 to 16
10 to 12
14 to 16
Spring Case Cap Screws (key 67)
25 to 28
34 to 38
25 to 28
34 to 38
25 to 28
34 to 38
25 to 28
34 to 38
Note: All studs, screws and nuts shall be lubricated. All final torque values shall be verified with a calibrated torque wrench.
Table 7. Type MR105 Trim Weight
body size
NPS
DN
1
2
trim weight with
travel indicator
LB
kg
25
9
50
15
3
80
4
100
trim weight without
travel indicator
LB
kg
4.1
8
3.6
6.8
14
6.4
30
14
28
13
49
22
48
22
Apply the lubricants as the regulator is being
reassembled. All O-rings, gaskets and seals should
be lubricated with a good grade of general-purpose
lubricant and installed gently rather than forced into
position. Refer to Table 6 for torque specifications. Refer
to Figure 6 while servicing Type MR105 regulators.
Replacing Travel Indicator Assembly
If the trim parts are replaced, the travel indicator
should also be replaced. The Quick Change Travel
Indicator Kit includes a travel indicator assembly,
including all necessary elastomers for the travel
indicator. The elastomer repair kit does not
contain the elastomeric components for the travel
indicator assembly.
1. Remove the travel indicator assembly by removing
the lower indicator fitting (key 5) from the body
flange (key 2).
2. Coat the threads of the lower indicator fitting (key 5)
with a good grade of general-purpose lubricant.
3. Install the travel indicator assembly; torque
the lower indicator fitting (key 5) to 90 to
130 ft-lbs / 122 to 176 N•m.
4. Check indicator zeroing by unscrewing the
indicator protector (key 19) and seeing if the flange
of the flanged nut (key 22) lines up evenly with
the closed mark on the indicator scale (key 18). If
not, remove the indicator scale and separate the
flanged nut and hex nut (key 8). Hold the indicator
scale against the indicator fitting (key 35) with the
scale base resting against the smallest shoulder of
the fitting and turn the flanged nut until its flange
is aligned with the closed scale marking. Then
lock both nuts against each other and install the
indicator scale and protector.
Replacing Trim Parts
Perform this procedure when inspecting, cleaning or
replacing individual trim package parts.
caution
All disassembly, trim change and
reassembly steps in this section may be
performed with the regulator in the main
line. The trim for NPS 3 and 4 / DN 80
and 100 is heavy (see Table 7) and may
be awkward to remove or reinstall in
some valve/pipeline orientations. Follow
your company policy for lifting and
handling heavy parts.
Note
Access to the valve spring (key 9) and travel
indicator parts in step 1 can be gained
without removing the body flange (key 2).
11
Type MR105
1. Remove the lower indicator fitting (key 5)
and attached parts. Proceed to step 5 if only
maintenance on the indicator fitting or attached
parts is performed.
2. Loosen the hex nuts (key 29) and stud bolts
(key 3) and remove the body flange (key 2) from
the valve body (key 1).
3. Use the valve body (key 1) as a holding fixture
if desired. Flip the body flange (key 2) over and
anchor it on the valve body.
4. To gain access to the port seal (key 12), upper
seal (key 15) or valve plug (key 16) part, unscrew
the seat ring (key 13) from the cage (key 11)
and the cage from the body flange (key 2). To
remove the piston ring (key 14) and/or plug O-ring
(key 20), remove the valve plug (key 16) from
the body flange, insert a screwdriver into the
pre-cut fold over area of the piston ring and unfold
the piston ring. Proceed to step 6 if no further
maintenance is necessary.
5. To replace the body flange (key 2) or gain access
to the valve spring (key 9), indicator stem (key 10),
stem O-ring (key 7), spring seat (key 28) or
E-ring (key 23), remove the indicator protector
(key 19) and indicator scale (key 18). Since some
compression is left in the spring, carefully remove
the flanged nut (key 22) and hex nut (key 8). A
screwdriver may be inserted through the O-ring
retainer (key 6) to remove the stem O-ring without
removing the retainer. If necessary, unclip the
E-ring from the indicator stem.
6. Replace and lubricate parts such as the gasket
(key 4) and cage O-ring (key 17) as necessary.
If the port and upper seals (keys 12 and 15)
were removed, install them in their retaining slots
with the grooved sides facing out. Also lubricate
any other surfaces as necessary for ease of
installation. No further main valve maintenance is
necessary if just the lower indicator fitting (key 5)
and attached parts were removed.
7. Install the plug O-ring (key 20) and piston ring
(key 14) onto the valve plug (key 16). Insert the
valve plug into the body flange (key 2), install the
cage (key 11) plus upper seal (key 15) and cage
O-ring (key 17) into the body flange and then
install the seat ring (key 13) plus port seal (key 12)
into the cage. Apply a thin coating of lubricant
to seals for protection during assembly. Use the
valve body as a holding fixture during this step
and insert a wrench handle (or similar tool) into
the seat ring slots for leverage when tightening the
seat ring and cage.
12
8. Remove the upside-down body flange (key 2) if
it was anchored on the body (key 1). Coat the
cage seating surfaces of the valve body web
and the body flange seating surfaces of the
valve body neck with a good grade of generalpurpose lubricant.
!
Warning
Personal injury, equipment damage or
leakage due to escaping fluid may result
if regulator bolts are not tightened to
proper load. Always tighten bolts in an
alternating pattern.
9. Install the body flange (key 2) on the body (key 1)
and secure it evenly using the stud bolts (key 3)
and nuts (key 29). Tighten to the torque value
specified in Table 6.
10. Make sure that the lower indicator fitting and
stem O-rings (keys 21 and 7) and O-ring retainer
(key 6) are installed in the lower indicator fitting
(key 5). Install the spring seat (key 28) and attach
it with the E-ring (key 23) to the slotted end of the
indicator stem (key 10). Install the valve spring
(key 9).
11. Being careful not to cut the stem O-ring (key 7)
with the stem threads, install the lower indicator
fitting (key 5) down over the indicator stem
(key 10) until resting on the valve spring (key 9).
Install the hex nut (key 8) and then the flanged
nut (key 22) on the indicator stem, pushing on the
fitting if necessary to provide sufficient stem thread
exposure. To maintain clearance for indicator part
installation, compress the spring seat (key 28) by
turning the hex nut (key 8) down on the stem until
the threads bottom.
12. Install the lower indicator fitting (key 5) with
attached parts into the body flange (key 2). Back
off the hex nut (key 8) until the valve spring (key 9)
completely closes the valve plug (key 16) against
the port and upper seals (keys 12 and 15), as
indicated by stem threads showing between the
hex nut (key 8) and indicator fitting (key 35). Hold
the indicator scale (key 18) against the indicator
fitting with the scale base resting against the
smallest shoulder of the indicator fitting and turn
the flanged nut (key 22) until its flange is aligned
with the closed scale marking. Then lock both nuts
against each other and install the indicator scale
and protector (keys 18 and 19).
Type MR105
Actuator Maintenance
Perform this procedure if it is desired to inspect or
replace the diaphragm or other internal parts or if it
is desired to change the outlet pressure range of the
regulator by changing the control spring.
!
Warning
To avoid possible personal injury from
spring or pressure-loaded actuator,
make certain the adjusting screw is
completely backed off or the spring case
pressure is vented prior to disassembly.
Otherwise, the spring load or loading
pressure could forcefully eject the
spring case.
Replacing Main Spring
1. Loosen the jam nut (key 72). If pressure-loaded
actuator is used, remove also the sealing washer
(key 71). Using a hand wrench (not an impact
gun), unscrew the adjusting screw (key 73) and
remove it from the spring case (key 70).
2. Loosen and remove the cap screws (key 67) and
lift off the spring case (key 70) from the spring case
spacer (key 66 for Low-Pressure Actuator), upper
casing welding assembly (key 87 for Low-Pressure
Pressure-Loaded Actuator) or upper diaphragm
casing (key 63 for High-Pressure Actuator).
3. Remove the upper spring seat (key 69) and control
spring (key 68). Replace the control spring if desired.
4. For pressure-loaded actuator, replace the upper
casing welding assembly top O-ring (Low-Pressure
Actuator) or upper diaphragm casing O-ring (HighPressure Actuator) (key 64) if necessary. Install
the new O-ring in the groove on the top surface
of the upper casing welding assembly (key 87)
for Low-Pressure Actuator or upper diaphragm
casing (key 63) for High-Pressure Actuator. If
spring (key 68) and spring case spacer/upper
diaphragm casing O-ring (key 64) replacement
has been completed and no further maintenance
in the actuator and its internal parts is necessary,
proceed to step 23 for Low-Pressure Actuator or
step 20 for High-Pressure Actuator.
For Low-Pressure Actuator Diaphragm Replacement
5. Remove the cap screws (key 57) and hex nuts
(key 58) connecting the casings (key 63 or 87
and key 62) and diaphragm (key 56). Lift off the
upper diaphragm casing (key 63) or upper casing
welding assembly (key 87).
6. Unscrew the jam nuts (key 48) and remove them
from the actuator stem (key 40).
7. Remove the Belleville spring washer (key 49),
lower spring guide (key 52) and diaphragm plate
(key 55) from the actuator stem (key 40).
8. Lift off the diaphragm (key 56) from the actuator
stem (key 40) and inspect it for damage.
Replace if necessary. If no further maintenance
or inspection is required, proceed to step 18 to
reassemble the actuator.
Note
Exercise care to ensure that the actuator
stem (key 40) enters and exits the lower
diaphragm head bore without pinching,
cutting or damaging in any way the
lower diaphragm head O-ring (key 51).
9. Carefully remove the lower diaphragm head
(key 53) from the actuator stem (key 40) so that
the actuator stem threads do not damage the
O-ring inside the lower diaphragm head. Replace
the lower diaphragm head O-ring (key 51)
if necessary.
10. Remove the cap screws (key 65) connecting the
lower diaphragm casing (key 62) and internal
stiffener plate (key 84) to the bonnet (key 61).
Lift the stiffener plate and lower casing off of
the bonnet.
11. If it is desired to replace the bonnet and stem
O-rings (keys 60 and 47) and bearings (key 46),
disconnect the control line attached to bonnet
(key 61). Unscrew the bonnet from the valve body
(key 1). Remove stem (key 40) from the bonnet by
pulling on the end of the stem without threads.
12. Remove the wiper (key 45, detail Z) on the
threaded (orifice side) end of the bonnet (key 61)
to reach the bearing (key 46) and stem O-ring
(key 47). Install the new stem O-ring and bearing
and put back the wiper.
13. Turn the bonnet (key 61) over and install another
stem O-ring (key 47) and bearing (key 46, detail X)
in the top side of the bonnet. Inspect the bonnet
O-ring (key 60) installed in the groove located
on the top surface of the bonnet (key 61) for any
damage and replace if necessary.
14. Lubricate the bore on both ends of the bonnet
(key 61). Install the bonnet over the actuator
stem (key 40) and thread into the valve body
(key 1). Tighten the bonnet into the body until the
connecting pipe holes in the bonnet are located
90° from the valve body ends for correct tubing
13
Type MR105
alignment. Do not loosen the bonnet thread to align
the pipe holes. Always tighten the bonnet to make
alignment for the control line.
Note
Position the bonnet (key 61) such
that the vent (key 26) is facing valve
body (key 1) inlet, the lube fitting (key 44)
is facing body outlet end and the 1/2 NPT
control line connection (key 30) is
located 90° from the valve body ends.
For pressure-loaded actuator option skip
steps 20 and 21 and proceed to step 22
with upper casing welding assembly
(key 87).
20. Install the upper diaphragm casing (key 63)
or spring case spacer (key 66) assembly
while aligning the bolt circle holes in the upper
diaphragm casing, diaphragm (key 56) and lower
diaphragm casing (key 62).
Note
Note
Exercise care to ensure that the actuator
stem (key 40) enters and exits the
bonnet bore without pinching, cutting or
damaging the valve stem O-rings (key 47).
Exercise care to ensure that the
diaphragm (key 56) is not pinched,
twisted or wrinkled while compressing
between the upper and lower diaphragm
casings (keys 62 and 63).
15. Lubricate the cap screws (key 65) and use it to
position and secure the lower diaphragm casing
(key 62) and internal stiffener plate (key 84) to
the bonnet (key 61). Tighten the cap screws to a
torque of 10 to 12 ft-lbs / 14 to 16 N•m.
16. The serrated side of the lower diaphragm head
(key 53) should be facing up toward the threaded
end of the actuator stem (key 40). Carefully install
the lower diaphragm head over the actuator stem.
Note
Exercise care to ensure that the
actuator stem (key 40) enters and exits
the lower diaphragm head bore without
pinching, cutting or damaging in any
way the lower diaphragm head O-ring
(key 51).
17. Place the diaphragm (key 56) over the actuator
stem (key 40) and on top of the lower diaphragm
head (key 53). The convolutions of the diaphragm
should be pointing up.
18. Place the following over the actuator stem
(key 40) and on top of the diaphragm (key 56),
in the following order: diaphragm plate (key 55),
lower spring guide (key 52) and Belleville spring
washer (key 49). The raised inner diameter of the
Belleville spring washer should be pointing toward
the threaded end of the actuator stem.
19. Lubricate the threads of the actuator stem (key 40)
and thread the two jam nuts (key 48) onto it.
Using wrench flats, hold the stem and torque the
jam nuts individually. Tighten to a torque of 12 to
14 ft-lbs / 16 to 19 N•m.
14
Note
21. Lubricate the cap screws (key 57) and nuts
(key 58) and carefully insert through holes in the
outer flange of the diaphragm casings (keys 62
and 63) and diaphragm (key 56). Tighten the cap
screws to the hex nuts to a final torque value of
27 to 29 ft-lbs / 37 to 39 N•m.
22. Place the control spring (key 68) inside the hole
in the upper diaphragm casing (key 63) or upper
casing welding assembly (key 87) and over the
lower spring guide (key 52). The spring should be
sitting on top of the diaphragm plate (key 55).
23. Lubricate the bore on the top of the upper spring
seat (key 69) where the adjusting screw (key 73)
will make contact. Place the upper spring seat on
top of the control spring (key 68).
24. Install the spring case (key 70) over the control
spring (key 68) and upper spring seat (key 69) and
on top of the spring case spacer (key 66) or upper
casing welding assembly (key 87). Align the holes
in the spring case with the holes in the spring case
spacer or upper casing welding assembly while
ensuring the vent assembly (key 26) is aligned
with valve body inlet.
25. Lubricate cap screws (key 67) and use them
to secure the spring case (key 70) to the spring case
spacer (key 66) or upper casing welding assembly
(key 87). Tighten the cap screws to a final torque of
25 to 28 ft-lbs / 34 to 38 N•m.
Type MR105
!
Warning
Personal injury, equipment damage or
leakage due to escaping fluid may result
if adjusting screw (key 73) and jam
nut (key 72) are not installed properly.
Also, main spring (key 68) may go solid
resulting in the regulator not locking up
if jam nut is not installed and adjusting
screw is adjusted completely down.
26. Lubricate the adjusting screw (key 73) and thread
on the jam nut (key 72). If pressure-loaded actuator
is used, install the sealing washer (key 71).
Lubricate the adjusting screw and place it into the
spring case (key 70). Thread the adjusting screw
using a hand wrench (not an impact gun) until it
touches the upper spring seat (key 69). Set the
regulator to the desired outlet pressure according to
the procedure in Adjustment section.
For High-Pressure Actuator Diaphragm Replacement
5. Remove the cap screws (key 57) and hex nuts
(key 58) connecting the diaphragm casings
(keys 62 and 63) and diaphragm (key 56). Lift off
the upper diaphragm casing (key 63).
6. Unscrew the jam nuts (key 48, detail V) and
remove them from the actuator stem (key 40).
7. Remove the Belleville spring washer (key 49) and
lower spring seat (key 54) from the actuator stem
(key 40).
8. Lift off the diaphragm (key 56) from the actuator
stem (key 40) and inspect it for damage. Replace
if necessary. If no further maintenance or
inspection is required, proceed to step 15.
Note
Exercise care to ensure that the
actuator stem (key 40) enters and exits
the lower diaphragm head bore without
pinching, cutting or damaging in any way
the lower diaphragm head O-ring (key 51).
9. Carefully remove the lower diaphragm head (key 53)
from the actuator stem (key 40). Replace the lower
diaphragm head O-ring (key 51) if necessary.
10. If it is desired to replace the stem O-rings (key 47,
detail X and Z) and bearings (key 46), disconnect
the control line tubing. Remove the lower
diaphragm casing (key 62) by unthreading it from
the valve body (key 1). Remove stem (key 40)
from the lower casing by pulling on the end of the
stem without threads.
11. Remove the wiper ring (key 45, detail Z) on the
threaded end of the lower diaphragm casing
(key 62) to reach the bearing (key 46) and stem
O-ring (key 47). Install the new stem O-ring and
bearing and put back the wiper.
12. Turn the lower diaphragm casing (key 62) over and
install another stem O-ring (key 47) and bearing
(key 46) in the top side of the lower casing.
13. Lubricate the bore on both ends of the
lower diaphragm casing (key 62). Install the lower
casing over the actuator stem (key 40) and thread
into the valve body (key 1). Tighten the lower
casing into the body until the connecting pipe holes
in the casing are located 90° from the valve body
ends for correct tubing alignment. Do not loosen
the bonnet thread to align the pipe holes. Always
tighten the lower casing to make alignment for the
control line.
Note
Position the lower diaphragm casing
(key 62) such that the vent (key 26) is
facing valve body (key 1) inlet, the lube
fitting (key 44) is facing body outlet end
and the 1/2 NPT control line connection
(key 30) is located 90° from the valve
body ends.
Note
Exercise care to ensure that the actuator
stem (key 40) enters and exits the
casing bore without pinching, cutting
or damaging the actuator stem O-rings
(key 47).
14. The serrated side of the lower diaphragm head
(key 53) should be facing up toward the threaded
end of the actuator stem (key 40). Carefully install
the lower diaphragm head over the actuator stem.
Note
Exercise care to ensure that the
actuator stem (key 40) enters and exits
the lower diaphragm head bore without
pinching, cutting or damaging in any way
the lower diaphragm head O-ring (key 51).
15. Lubricate the convoluted side of the diaphragm
(key 56) and place over the actuator stem (key 40)
and on top of the lower diaphragm head (key 53).
The convolutions of the diaphragm should be
pointing up.
15
Type MR105
16. Place the lower spring seat (key 54) and Belleville
spring washer (key 49) over the actuator stem
(key 40) and on top of the diaphragm (key 56).
The raised inner diameter of the spring washer
should be pointing toward the threaded end of the
actuator stem.
17. Lubricate the threads of the actuator stem (key 40)
and thread the two jam nuts (key 48) onto it. Using
wrench flats, hold the stem and torque the two jam
nuts individually. Tighten to a torque of
12 to 14 ft-lbs / 16 to 19 N•m.
18. Install the upper diaphragm casing (key 63)
while aligning the bolt circle holes in the upper
diaphragm casing, diaphragm (key 56) and lower
diaphragm casing (key 62).
Note
Exercise care to ensure that the
diaphragm (key 56) is not pinched,
twisted or wrinkled while compressing
between the upper and lower diaphragm
casings (keys 62 and 63).
19. Lubricate the cap screws (key 57) and nuts (key 58)
and carefully insert through holes in the outer flange
of the diaphragm casings (keys 62 and 63) and
diaphragm (key 56). Tighten the cap screws to
the hex nuts to a final torque value of 45 to
55 ft-lbs / 61 to 75 N•m.
20. Place the control spring (key 68) inside the hole in
the upper diaphragm casing (key 63) and over the
lower spring seat (key 54). The spring should be
sitting on top of the lower spring seat.
21. Lubricate the bore on the top of the upper spring
seat (key 69) where the adjusting screw (key 73)
will make contact. Place the upper spring seat on
top of the control spring (key 68).
22. Install the spring case (key 70) over the control
spring (key 68) and upper spring seat (key 69) and
on top of the upper diaphragm casing (key 63).
Align the holes in the spring case with the holes in
the upper casing while ensuring the vent assembly
(key 26) is aligned with valve body inlet.
23. Lubricate cap screws (key 67) and use them
to secure the spring case (key 70) to the upper
diaphragm casing (key 63). Tighten the cap
screws to a final torque of 25 to 28 ft-lbs / 34 to
38 N•m.
16
!
Warning
Personal injury, equipment damage or
leakage due to escaping fluid may result
if adjusting screw (key 73) and jam nut
(key 72) are not installed properly. Also,
spring (key 68) may go solid resulting in
regulator not locking up if jam nut is not
installed and adjusting screw is adjusted
completely down.
24. Lubricate the adjusting screw (key 73) and thread on
the jam nut (key 72). If pressure-loaded actuator is
used, install the sealing washer (key 71). Lubricate
the adjusting screw and place it into the spring case
(key 70). Thread the adjusting screw using a hand
wrench (not an impact gun) until it touches the
upper spring seat (key 69). Set the regulator to the
desired outlet pressure according to the procedure in
Adjustment section.
Regulator Reassembly
As indicated by the square callouts in Figure 6, it is
recommended that a good quality pipe thread sealant
be applied to pressure connections and fittings and a
good quality lubricant be applied to O-rings. Also apply
an anti-seize compound to the adjusting screw threads
and other areas as needed.
After repair, the regulator should be tested for proper
operation before being put back into service.
Parts Ordering
When corresponding with your local Sales Office about
this regulator, always reference the equipment serial
number or FS number found on the nameplate.
When ordering replacement parts, reference the key
number of each needed part as found in the following
parts list. Separate kits containing all recommended
spare parts are available.
Parts List
Note
In this parts list, parts marked NACE are
intended for corrosion-resistant service
as detailed in the NACE International
Standard MR0175-2003 and MR0103.
Type MR105
!
Warning
73
72
Use only genuine Fisher® replacement
parts. Components that are not supplied
by Emerson™ should not, under any
circumstances, be used in any Fisher
regulator, because they will void your
warranty, might adversely affect the
performance of the valve and could
give rise to personal injury and
property damage.
Key Description
Quick Change Travel Indicator Kit
(Includes keys 5, 6, 7, 8, 9, 10, 18, 19, 21,
22, 23, 28, 35, 36 (2 required) and 37)
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
Elastomer Trim Parts Kit (Includes keys 4, 12,
14, 15, 17, 20 and 21)
Nitrile (NBR)
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
Fluorocarbon (FKM)
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
Ethylene Propylene (EPDM)
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
Actuator Parts Kit (Includes keys 45,
46 (2 required), 47 (2 required), 48 (2 required),
49, 51, 56 and 60 (For Low-Pressure
Actuator only))
Nitrile (NBR)
Low-Pressure Actuator
High-Pressure Actuator
Fluorocarbon (FKM)
Low-Pressure Actuator
High-Pressure Actuator Ethylene Propylene (EPDM)
Low-Pressure Actuator
High-Pressure Actuator
1
Valve Body
See following table
2
Body Flange
WCC Steel
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
CF8M Stainless Steel (NACE)
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
CF3M Stainless Steel (NACE)
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
70
43
44
L2
30
S
26
Part Number
38
10C1212X142
10C1212X112
10C1212X122
10C1212X132
1
RMR1058XF12
RMR1058XF22
RMR1058XF32
RMR1058XF42
RMR1058XE12
RMR1058XE22
RMR1058XE32
RMR1058XE42
25
RMR1058XFL2
RMR1058XFH2
RMR1058XEL2
RMR1058XEH2
GE39061X012
GE39060X012
GE39059X012
GE39058X012
GE39061X022
GE39060X022
GE39059X022
GE39058X022
GE39061X032
GE39060X032
GE39059X032
L1
24
APPLY lubricant or sealant(1):
L1 = multi-purpose polytetrafluoroethylene (ptfe) lubricant
l2 = multi-purpose nlgi(2) grade 1 grease
l3 = anti-seize compound
s = multi-purpose ptfe thread sealanT
NOTE: KEY 38 IS NOT USED WITH 1/4 NPT DRAIN VALVE OPTION.
1. Lubricants and sealants must be selected such that they meet the temperature requirements.
2. National Lubricating Grease Institute.
Figure 6. Type MR105 Direct-Operated Pressure Reducing
Regulator Assemblies
Key Description
RMR1058XNL2
RMR1058XNH2
S
2
GE38435
RMR1058XN12
RMR1058XN22
RMR1058XN32
RMR1058XN42
L3
3
Stud Bolt
Steel
NPS 1 / DN 25 (4 required)
NPS 2 / DN 50 (8 required)
NPS 3 / DN 80 (8 required)
NPS 4 / DN 100 (8 required)
Stainless Steel (NACE)
NPS 1 / DN 25 (4 required)
NPS 2 / DN 50 (8 required)
NPS 3 / DN 80 (8 required)
NPS 4 / DN 100 (8 required)
4* Gasket, Composition (NACE)
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
5
Lower Indicator Fitting, Steel
NPS 1 / DN 25
NPS 2, 3 and 4 / DN 50, 80 and 100
6
O-ring Retainer, Stainless Steel
7* Indicator Stem O-ring
Nitrile (NBR)
Fluorocarbon (FKM)
Ethylene Propylene (EPDM)
8
Hex Nut, Steel
Part Number
1R2848X0752
1K2429X0782
1A3781X0562
1R3690X0592
1R284835222
1K242935222
1A378135222
1R369035222
14A6785X012
14A5685X012
14A5665X012
14A5650X012
T21117T0012
T21107T0012
T14276T0012
1E472706992
1N430406382
1D6875X0092
1A662228992
*Recommended spare part.
17
Type MR105
Key 1, Type MR105 Valve Bodies
Material
End Connection
NPT
CL125 FF
CL250 RF
NPT
CL150 RF
CL300 RF
CL600 RF
PN 16/25/40 RF
PN 16 RF
NPT
CL150 RF
CL300 RF
CL600 RF
PN 16/25/40 RF
PN 16 RF
CL150 RF
CL300 RF
NPT
CL150 RF
CL300 RF
CL600 RF
Cast Iron
WCC Steel
CF8M Stainless Steel
(NACE)
CF3M Stainless Steel
(NACE)
WCC Steel (NACE)
Key Description
NPS 1 / DN 25
34B7611X012
34B8630X012
37B5950X012
37B5946X012
37B5947X012
37B5948X012
37B5949X012
GE05956X012
----------37B5946X032
37B5947X032
37B5948X032
37B5949X032
GE05956X022
----------37B5947X102
37B5948X102
37B5946X022
37B5947X022
37B5948X022
37B5949X022
Part Number
9
Valve Spring, Inconel X750 (NACE)
NPS 1 / DN 25
10B1882X012
NPS 2 / DN 50
16A5499X012
NPS 3 / DN 80
16A5500X012
NPS 4 / DN 100
16A5998X012
10 Indicator Stem, 18-8 Stainless Steel
NPS 1 / DN 25
T14311T0012
NPS 2 / DN 50
T14275T0012
NPS 3 / DN 80
T14312T0012
NPS 4 / DN 100
T14313T0012
11 Cage (NACE)
For Gas Service, Linear, CF8M Stainless Steel
NPS 1 / DN 25
34B4136X012
NPS 2 / DN 50
34B5838X012
NPS 3 / DN 80
34B5839X012
NPS 4 / DN 100
34B5840X012
For Liquid Service, Quick Open,
CF3M/CF8M Stainless Steel
NPS 1 / DN 25
GF03315X012
NPS 2 / DN 50
Full Capacity
GF03319X012
Reduced Capacity
GG00814X012
NPS 3 / DN 80
GF03311X012
NPS 4 / DN 100
GF03314X012
12* Port Seal (NACE)
Nitrile (NBR)
NPS 1 / DN 25
14A6788X012
NPS 2 / DN 50
24A5673X012
NPS 3 / DN 80
24A5658X012
NPS 4 / DN 100
24A5643X012
Fluorocarbon (FKM)
NPS 1 / DN 25
14A8186X012
NPS 2 / DN 50
25A7412X012
NPS 3 / DN 80
25A7375X012
NPS 4 / DN 100
25A7469X012
®
*Recommended spare part.
Inconel® is a mark owned by Special Metals Corporation.
18
part number
NPS 2 / DN 50
NPS 3 / DN 80
38A8845X012
----------38A8847X012
38A8851X012
38A8846X012
38A8850X012
38A8848X012
----------38A8853X012
38A8872X012
38A8849X012
38A8871X012
38A8844X012
38A8852X012
GE05960X012
--------------------GE05965X012
38A8848X032
----------38A8853X072
38A8872X052
38A8849X032
38A8871X052
38A8844X032
38A8852X042
GE05960X022
--------------------GE05965X022
38A8853X082
----------38A8849X122
38A8871X122
38A8848X022
----------38A8853X052
38A8872X062
38A8849X022
38A8871X042
38A8844X022
38A8852X032
Key Description
12* Port Seal (NACE) (continued)
Ethylene Propylene (EPDM)
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
13 Seat Ring
416 Stainless Steel
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
316 Stainless Steel (NACE)
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
316L Stainless Steel (NACE)
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
14* Piston Ring
PTFE (NACE)
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
15* Upper Seal (NACE)
Nitrile (NBR)
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
Fluorocarbon (FKM)
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
NPS 4 / DN 100
----------38A8865X012
38A8854X012
----------38A8867X012
38A8869X012
38A8866X012
----------GE05969X012
----------38A8867X042
38A8869X032
38A8866X032
----------GE05969X022
------------------------------38A8867X032
38A8869X022
38A8866X022
Part Number
14A6788X022
24A5673X062
24A5658X062
24A5643X052
24A6781X012
24A5670X012
24A5655X012
24A5640X012
24A6781X022
24A5670X022
24A5655X022
24A5640X022
24A6781X052
24A5670X042
24A5655X042
24A5640X042
14A6786X012
14A5675X012
14A5660X012
14A5645X012
14A6789X012
24A5674X012
24A5659X012
24A5644X012
14A8187X012
25A7413X012
25A7376X012
25A7468X012
Type MR105
Key Description
15* Upper Seal (NACE) (continued)
Ethylene Propylene (EPDM)
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
16* Valve Plug
416 Stainless Steel
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
S20910 Stainless Steel (NACE)
NPS 1 / DN 25
316 Stainless Steel (NACE)
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
316L Stainless Steel (NACE)
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
17* Cage O-ring (NACE)
Nitrile (NBR)
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
Fluorocarbon (FKM)
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
Ethylene Propylene (EPDM)
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
18 Travel Indicator Scale, Plastic
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 and 4 / DN 80 and 100
19 Travel Indicator Protector, Zinc-Plated Steel
20* Valve Plug O-ring (NACE)
Nitrile (NBR)
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
Fluorocarbon (FKM)
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
Ethylene Propylene (EPDM)
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
21* Lower Indicator Fitting O-ring (NACE)
Nitrile (NBR)
NPS 1 / DN 25
NPS 2, 3 and 4 / DN 50, 80 and 100
Fluorocarbon (FKM)
NPS 1 / DN 25
NPS 2, 3 and 4 / DN 50, 80 and 100
Ethylene Propylene (EPDM)
NPS 1 / DN 25
NPS 2, 3 and 4 / DN 50, 80 and 100
Part Number
14A6789X022
24A5674X062
24A5659X062
24A5644X052
14A6780X012
24A6772X012
24A9421X012
24A8182X012
14A6780X132
24A6772X032
24A9421X022
24A8182X022
24A6772X072
24A9421X052
24A8182X052
10A7777X012
10A7779X012
14A5688X012
10A3481X012
10A7778X012
10A7779X022
14A5688X022
10A3483X012
10A7777X022
10A7779X052
14A5688X082
10A3481X052
14A6759X012
14A5678X012
14A5662X012
14A6769X012
14A6981X012
14A5686X012
1V326906562
14A5688X012
14A8188X012
14A5686X022
1V3269X0042
14A5688X022
14A6981X032
14A5686X052
1V3269X0062
14A5688X082
10A8931X012
10A3800X012
10A0811X012
1R727606382
10A8931X022
10A3800X042
Key Description
22 Flange Nut, Steel
23 E-ring, Stainless Steel
24 Drive Screw, Stainless Steel (NACE) (6 required)
25 Flow Arrow
26 Vent Assembly (NACE) (2 required/
1 required for Pressure-Loaded Actuator)
27 Plug (Type MR105 Without Travel Indicator Only)
Steel
NPS 1 / DN 25
NPS 2, 3 and 4 / DN 50, 80 and 100
Stainless Steel (NACE)
NPS 1 / DN 25
NPS 2, 3 and 4 / DN 50, 80 and 100
28 Spring Seat, Zinc-Plated Steel
NPS 1 / DN 25
NPS 2, 3 and 4 / DN 50, 80 and 100
29 Hex Nut
Steel
NPS 1 / DN 25 (4 required)
NPS 2 / DN 50 (8 required)
NPS 3 / DN 80 (8 required)
NPS 4 / DN 100 (8 required)
Stainless Steel (NACE)
NPS 1 / DN 25 (4 required)
NPS 2 / DN 50 (8 required)
NPS 3 / DN 80 (8 required)
NPS 4 / DN 100 (8 required)
30 Pipe Plug, 1/2 NPT
Steel
Stainless Steel (NACE)
33 NACE Tag (not shown)
34 Seal Wire, Stainless Steel (NACE) (not shown)
35 Indicator Fitting, Stainless Steel
36* Back O-ring, PTFE (2 required)
37* Indicator Fitting O-ring
Nitrile (NBR)
Fluorocarbon (FKM)
Ethylene Propylene (EPDM)
38 Pipe Plug, 1/4 NPT
(not used with Drain Valve option)
Steel
Stainless Steel (NACE)
40 Actuator Stem
S17400 Stainless Steel
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
S20910 Stainless Steel (NACE)
NPS 1 / DN 25
NPS 2 / DN 50
NPS 3 / DN 80
NPS 4 / DN 100
43 Nameplate
44 Lube Fitting, Steel (NACE)
45 Wiper Ring (NACE)
46* Bearing (NACE) (2 required)
Nylon (PA)
Nyliner
47* Valve Stem O-ring (NACE) (2 required)
Nitrile (NBR)
Fluorocarbon (FKM)
Ethylene Propylene (EPDM)
48* Jam Nut (2 required), Zinc-Plated Steel (NACE)
49* Belleville Spring Washer (NACE)
51* Lower Diaphragm Head O-ring (NACE)
Nitrile (NBR)
Fluorocarbon (FKM)
Ethylene Propylene (EPDM)
Part Number
14A5693X012
14A8181X012
1A368228982
----------Type Y602-12
14A6983X012
14A9684X012
14A6983X022
14A9684X032 14A6982X012
15A2206X012
1C3306X0832
1A3772X0892
1A3760X0832
1A3520X0922
1C330635252
1A377235252
1A376035252
1A352035252
1A369224492
1A369235072
----------1U7581X0022
T21104T0012
1K786806992
18B3438X012
1N430306382
1N4303X0012
1A767524662
1A767535072
GE39146X012
GE39147X012
GE39148X012
GE39149X012
GE39146X022
GE39147X022
GE39148X022
GE39149X022
----------1L847828992
15A6002XN12
17A7112X012
17A7112X022
1C782206992
1K756106382
1C7822X0052
1A946324122
GG04933X012
1P420706992
1L949306382
1P4207X0032
*Recommended spare part.
19
Type MR105
Key Description
Part Number
52 Lower Spring Guide, Zinc-Plated Steel (NACE)
(Low-Pressure Actuator only)
GE39171X012
53 Lower Diaphragm Head
17-4 Stainless Steel (NACE)
Low-Pressure Actuator
GE39137X012
High-Pressure Actuator
GG02195X012
54 Lower Spring Seat, Zinc-Plated Steel (NACE)(1)
(High-Pressure Actuator only)
GE39174X012
55 Diaphragm Plate, Cast Iron (NACE)(1)
(Low-Pressure Actuator only)
GG02994X012
56* Diaphragm (NACE)
Low-Pressure Actuator
Nitrile (NBR)/Nylon (PA)
GG02995X012
Fluorocarbon (FKM)/Nylon (PA)
GG02995X022
Ethylene Propylene (EPDM)
GG02995X052
High-Pressure Actuator
Nitrile (NBR)/Nylon (PA)
GE39329X012
Fluorocarbon (FKM)/Nomex®GE39329X022
Ethylene Propylene (EPDM)
GE39329X052
57 Cap Screw
Low-Pressure Actuator (16 required)
Steel
1E7603X0062
Stainless Steel (NACE)
1E7603X0072
High-Pressure Actuator (8 required)
Steel
T10990X0012
Stainless Steel (NACE)
1A219235222
58 Hex Nut
Low-Pressure Actuator
Steel (16 required)
1A3465X0092
Stainless Steel (16 required) (NACE)
1A3465X0102
High-Pressure Actuator
Steel (8 required)
1E9445X0502
Stainless Steel (16 required) (NACE)
1A337435252
60* O-ring (NACE) (Low-Pressure Actuator only)
Nitrile (NBR)
1F358106992
Fluorocarbon (FKM)
1F3581X0022
61 Bonnet (Low-Pressure Actuator only)
Steel
33B0301X012
316 Stainless Steel (NACE)
33B0301X072
62 Lower Diaphragm Casing
Low-Pressure Actuator
Steel
24A5680X012
316 Stainless Steel (NACE)
24A5680X072
High-Pressure Actuator
Steel
GG00833X012
CF3M/CF8M Stainless Steel (NACE)
GG00833X022
High-Pressure Actuator with 1/8 NPT Tap
for Bleed Valve (optional)
Steel
ERSA01471A0
CF3M/CF8M Stainless Steel (NACE)
ERSA01471A1
63 Upper Diaphragm Casing
Low-Pressure Actuator
Steel
GG02988X012
316 Stainless Steel (NACE)
GG02988X022
High-Pressure Actuator
Steel
GG00884X012
CF3M/CF8M Stainless Steel (NACE)
GG00884X022
64* Upper Diaphragm Casing O-ring
(For Low and High-Pressure Actuator)
Nitrile (NBR)
1P233206992
Fluorocarbon (FKM)
1P2332X0012
(1)
Key Description
Part Number
65 Cap Screw (10 required)
(Low-Pressure Actuator only)
Steel
1A368424052
Stainless Steel (NACE)
1A3684X0102
66 Spring Case Spacer
(Low-Pressure Actuator only)
Steel
GG00877X012
316 Stainless Steel (NACE)
GG00877X022
67 Cap Screw (6 required)
Steel
1C4038X0062
Stainless Steel (NACE)
1C4038X0032
68 Control Spring, Steel Alloy (NACE)(1)
(Refer to Table 2 for the Spring Ranges)
White
GE42909X012
Silver
GE42910X012
Orange
GE42911X012
Red
GE43002X012
Green (for NPS 1 and 2 /
DN 25 and 50 body sizes only)
GE42907X012
69 Upper Spring Seat, Zinc-Plated Steel (NACE)(1)GG02175X012
70 Spring Case
WCC Steel
GG00917X012
CF3M/CF8M Stainless Steel (NACE)
GG00917X022
71 Seal Washer
(For Pressure-Loaded Actuator only)
Steel/Nitrile (NBR)
11A9681X012
Steel/Fluorocarbon (FKM)
11A9681X022
72 Jam Nut (NACE)
Steel
1A319224122
Stainless Steel
1A3192K0012
73 Adjusting Screw (NACE)
Steel
GG03609X012
Stainless Steel
GG03609X022
75 Restrictor (see Figure 4)
(For Liquid Service High-Pressure Actuator only)
Steel
17B5175X022
Stainless Steel (NACE)
17B5175X012 76 Pipe Bushing (1 required), For All Actuators
Steel
1C379026232
Stainless Steel (NACE)
1C3790X0012
76 Pipe Bushing (2 required), For Liquid Service
on High-Pressure Actuators
Steel
1C379026232
Stainless Steel (NACE)
1C3790X0012
81 Pipe Nipple, Stainless Steel (NACE) (not shown) 1C488238982
82 Drain Valve, Stainless Steel (NACE)
(see Figure 5), 1/4 NPT
13B2392X082
84 Internal Stiffener Plate
(Low-Pressure Actuator only)
Steel
ERSA00169A0
Stainless Steel (NACE)
ERSA00169A1
85 Bleed Valve, Stainless Steel (NACE)
(see Figure 5), 1/8 NPT
15A6011XDG2
87 Upper Casing Welding Assembly
(Low-Pressure Actuator only) (not shown)
Steel
ERSA02584A0
Stainless Steel
ERSA02584A1
*Recommended spare part.
Nomex® is a mark owned by E.I. du Pont de Nemours and Co.
1. Meets chemical and physical requirements of NACE MR0175-2003 and MR0103 for non-pressure loaded applications only. It is assumed that this part is not “exposed” to the sour gas.
20
Type MR105
L1
67
57
L3
69
71
52
L1
L1
64
68
66
L1
76
65
S
26
63
SEE DETAIL V
55
56
53
L1
58
S
62
L1
51
SEE DETAIL X
65
L1
84
SEE DETAIL Z
13
L1
12
L1
11
L1
L1
S
61
L1
40
L1
17
4
16
9
3
29
SEE DETAIL Y
L1
L1
Type MR105 with Low-Pressure Actuator Assembly
GE38435
APPLY lubricant or sealant(1):
L1 = multi-purpose ptfe lubricant
l3 = anti-seize compound
s = multi-purpose ptfe thread sealanT
NOTE: KEYS 64 AND 71 ARE USED ONLY FOR PRESSURE-LOADED ACTUATORS.
1. Lubricants and sealants must be selected such that they meet the temperature requirements.
Figure 6. Type MR105 Direct-Operated Pressure Reducing Regulator Assemblies (continued)
21
Type MR105
71
54
64
L1
63
58
L1
56
L1
57
L1
62
S
51
53
NOTE: KEYS 64 AND 71 ARE USED ONLY FOR PRESSURE-LOADED ACTUATORS.
Type MR105 with High-Pressure Actuator Assembly
48
L1
46
L1
60
L1
47
49
Detail v
Detail X
GE38435
48
APPLY lubricant or sealant(1):
L1 = multi-purpose ptfe lubricant
s = multi-purpose ptfe thread sealanT
1. Lubricants and sealants must be selected such that they meet the temperature requirements.
Figure 6. Type MR105 Direct-Operated Pressure Reducing Regulator Assemblies (continued)
22
Type MR105
15
16
L1
L1
20
2
L1
47
L1
46
L1
45
14
Detail Z
Detail Y
L1
36
7
L1
21
L1
27
L1
Detail W
no travel indicator
23
28
10
6
5
L1
21
L1
37
L1
35
SEE DETAIL W
8
22
18
19
Type MR105 with optional travel indicator
GE38435
APPLY lubricant(1):
L1 = multi-purpose ptfe lubricant
1. Lubricants and sealants must be selected such that they meet the temperature requirements.
Figure 6. Type MR105 Direct-Operated Pressure Reducing Regulator Assemblies (continued)
23
Type MR105
Industrial Regulators
Natural Gas Technologies
TESCOM
Emerson Process Management
Regulator Technologies, Inc.
Emerson Process Management
Regulator Technologies, Inc.
Emerson Process Management
Tescom Corporation
USA - Headquarters
McKinney, Texas 75070 USA
Tel: +1 800 558 5853
Outside U.S. +1 972 548 3574
USA - Headquarters
McKinney, Texas 75070 USA
Tel: +1 800 558 5853
Outside U.S. +1 972 548 3574
USA - Headquarters
Elk River, Minnesota 55330-2445, USA
Tels: +1 763 241 3238
+1 800 447 1250
Asia-Pacific
Shanghai 201206, China
Tel: +86 21 2892 9000
Asia-Pacific
Singapore 128461, Singapore
Tel: +65 6770 8337
Europe
Selmsdorf 23923, Germany
Tel: +49 38823 31 287
Europe
Bologna 40013, Italy
Tel: +39 051 419 0611
Europe
Bologna 40013, Italy
Tel: +39 051 419 0611
Chartres 28008, France
Tel: +33 2 37 33 47 00
Asia-Pacific
Shanghai 201206, China
Tel: +86 21 2892 9499
Middle East and Africa
Dubai, United Arab Emirates
Tel: +971 4811 8100
Middle East and Africa
Dubai, United Arab Emirates
Tel: +971 4811 8100
For further information visit www.fisherregulators.com
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